Through some trial and error using the cxf plugin in my own projects I have come up against a few gotcha's specifically with using JaxWebServices that I wanted to make sure to call out.
https://github.com/thorstadt/grails-cxf#jax-web-service-gotchasSo far it has just been dealing with Generics (List<>) and default method params that have bitten me in the keister.